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AD5122A Datasheet(PDF) 16 Page - Analog Devices

Part No. AD5122A
Description  The AD5122A/AD5142A are available in a compact, 16-lead, 3 mm × 3 mm LFCSP and a 16-lead TSSOP.
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

AD5122A Datasheet(HTML) 16 Page - Analog Devices

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AD5122A/AD5142A
Data Sheet
Rev. A | Page 16 of 32
–60
–50
–40
–30
–20
–10
0
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
AD5142A (AD5122A)
0x80, (0x40)
0x40, (0x20)
0x20, (0x10)
0x10, (0x08)
0x8, (0x04)
0x4, (0x02)
0x2, (0x01)
0x1, (0x00)
0x00
Figure 18. 10 kΩ Gain vs. Frequency and Code
–100
–90
–80
–70
–60
–50
–40
20
200
2k
20k
200k
FREQUENCY (Hz)
10k
100k
VDD/VSS = ±2.5V
VA = 1V rms
VB = GND
CODE = HALF SCALE
NOISE FILTER = 22kHz
Figure 19. Total Harmonic Distortion Plus Noise (THD + N) vs. Frequency
–100
–80
–60
–40
–20
0
20
10
100
1k
10k
100k
1M
10M
FREQUENCY (Hz)
QUARTER SCALE
MIDSCALE
FULL-SCALE
VDD/VSS = ±2.5V
RAB = 10kΩ
Figure 20. Normalized Phase Flatness vs. Frequency, RAB = 10 kΩ
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
10
FREQUENCY (Hz)
10
100
1k
10k
100k
1M
10M
0x80, (0x40)
0x40, (0x20)
0x20, (0x10)
0x10, (0x08)
0x8, (0x04)
0x4, (0x02)
0x2, (0x01)
0x1, (0x00)
0x00
AD5142A (AD5122A)
Figure 21. 100 kΩ Gain vs. Frequency and Code
10k
100k
–90
–80
–70
–60
–50
–40
–30
–20
–10
0
0.001
0.01
0.1
1
VOLTAGE (V rms)
VDD/VSS = ±2.5V
fIN = 1kHz
CODE = HALF SCALE
NOISE FILTER = 22kHz
Figure 22. Total Harmonic Distortion Plus Noise (THD + N) vs. Amplitude
–80
–90
–70
–60
–50
–40
–30
–20
–10
0
10
10
100
1k
10k
100k
1M
FREQUENCY (Hz)
QUARTER SCALE
MIDSCALE
FULL-SCALE
VDD/VSS = ±2.5V
RAB = 100kΩ
Figure 23. Normalized Phase Flatness vs. Frequency, RAB = 100 kΩ


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